The War in Iraq was an armed conflict between Iraq and its allies and the Islamic State. Following December 2013, the insurgency escalated into full-scale guerrilla warfare following clashes in the cities of Ramadi and Fallujah in parts of western Iraq, and culminated in the Islamic State offensive into Iraq in June 2014, which lead to the capture of the cities of Mosul, Tikrit and other cities in western and northern Iraq by the Islamic State. Between 4–9 June 2014, the city of Mosul was attacked and later fell; following this, Prime Minister Nuri al-Maliki called for a national state of emergency on 10 June. However, despite the security crisis, Iraq's parliament did not allow Maliki to declare a state of emergency; many legislators boycotted the session because they opposed expanding the prime minister's powers. Ali Ghaidan, a former military commander in Mosul, accused al-Maliki of being the one who issued the order to withdraw from the city of Mosul. At its height, ISIL held 56,000 square kilometers of Iraqi territory, containing 4.5 million citizens.
Many states began to intervene against the Islamic State, in both the Syrian Civil War and the War in Iraq (2013–2017), in response to its rapid territorial gains from its 2014 Northern Iraq offensives, universally condemned executions, human rights abuses and the fear of further spillovers of the Syrian Civil War. These efforts are called the war against the Islamic State, or the war against ISIS. In later years, there were also minor interventions by some states against IS-affiliated groups in Nigeria and Libya. All these efforts significantly degraded the Islamic State's capabilities by around 2019–2020. While moderate fighting continues in Syria, as of 2024, ISIS has been contained to a manageably small area and force capability.
On 15 June 2014, U.S. President Barack Obama ordered United States forces to be dispatched in response to the Northern Iraq offensive of the Islamic State (IS) as part of Operation Inherent Resolve. At the invitation of the Iraqi government, American troops went to assess Iraqi forces and the threat posed by ISIL.
The condition of human rights in the territory controlled by the Islamic State (IS) is considered to be one of the worst in the world. The Islamic State's policies included acts of genocide, torture and slavery. The United Nations Commission on Human Rights (UNCHR) stated in November 2014 that the Islamic State "seeks to subjugate civilians under its control and dominate every aspect of their lives through terror, indoctrination, and the provision of services to those who obey". Many Islamic State actions of extreme criminality, terror, recruitment and other activities has been documented in the Middle East.
The Sinjar offensive was a combination of operations of Kurdish Peshmerga, PKK and People's Protection Units forces in December 2014, to recapture regions formerly lost to the Islamic State of Iraq and the Levant in their August offensive.
The Timeline of the War in Iraq covers the War in Iraq, a war which erupted that lasted in Iraq from 2013 to 2017, during the first year of armed conflict.
In early 2014, the jihadist group Islamic State of Iraq and the Levant captured extensive territory in Western Iraq in the Anbar campaign, while counter-offensives against it were mounted in Syria. Raqqa in Syria became its headquarters. The Wall Street Journal estimated that eight million people lived under its control in the two countries.
The Battle of Ramadi was a battle launched by the forces of Iraq to successfully recapture the city of Ramadi from the Islamic State of Iraq and the Levant (ISIL), which had taken the city earlier in 2015 in a previous battle. Air power was a major component of the battle, with the United States and other nations conducting over 850 airstrikes in the Ramadi area from July 2015 to late February 2016, and the US crediting airstrikes with 80% of the reason why the city was recaptured. By February 2016, Iraqi forces successfully recaptured the city after two and a half months of fighting. It was predicted that it would take several months to clear the city of the bombs ISIL left behind, with at least 9 months needed to clear the city's Tamim District. At the time, Ramadi had suffered more damage than any other city or town in Iraq.
The Shirqat offensive, codenamed Operation Conquest or Operation Fatah, was an offensive against the positions of the Islamic State of Iraq and the Levant (ISIL) in and around the district of Al-Shirqat District to reach the city of Mosul.
The Anbar campaign (2015–2016) was a military campaign launched by the Iraqi Armed Forces and their allies aimed at recapturing areas of the Anbar Governorate held by the Islamic State of Iraq and the Levant (ISIL), including the city of Ramadi, which ISIL seized earlier in 2015. The United States and other nations aided Iraq with airstrikes.
The siege of Fallujah was an offensive launched in February 2016 by the Iraqi government against the Islamic State of Iraq and the Levant (ISIL) in al-Karmah and in the city of Fallujah, with the aim of enforcing a siege of the latter. During the early stages of the operation, local Sunni residents revolted against ISIL for a period of three days. On 22 May, after completing preparations around the city, the Iraqi Army and supporting Shi'ite militias launched the third Battle of Fallujah.
The Battle of Hit, code named Operation Desert Lynx by Iraqi forces, was an offensive launched by the Iraqi Government during the Anbar offensive, with the goal of recapturing the town of Hīt and the Hīt District from ISIL. After the Iraqi forces recaptured the city of Ramadi, Hīt and Fallujah were the only cities still under the control of ISIL in the Al Anbar Governorate. Iraqi Forces fully recaptured of Hīt and the rest of the Hīt District on 14 April 2016.
The Yazidi genocide was perpetrated by the Islamic State throughout Iraq and Syria between 2014 and 2017. It was characterized by massacres, genocidal rape, and forced conversions to Islam. The Yazidi people, who are non-Arabs, are indigenous to Kurdistan and adhere to Yazidism, which is an Iranian religion derived from the Indo-Iranian tradition. Over a period of three years, Islamic State militants trafficked thousands of Yazidi women and girls and killed thousands of Yazidi men; the United Nations reported that the Islamic State killed about 5,000 Yazidis and trafficked about 10,800 Yazidi women and girls in a "forced conversion campaign" throughout Iraq. By 2015, upwards of 71% of the global Yazidi population was displaced by the genocide, with most Yazidi refugees having fled to Iraq's Kurdistan Region and Syria's Rojava. The persecution of Yazidis, along with other religious minorities, took place after the Islamic State's Northern Iraq offensive of June 2014.
The Third Battle of Fallujah, code-named Operation Breaking Terrorism by the Iraqi government, was a military operation against ISIL launched to capture the city of Fallujah and its suburbs, located about 69 kilometres (43 mi) west of the Iraqi capital Baghdad. The operation began on 22 May 2016, three months after the Iraqi forces had started the total siege of Fallujah. On 26 June, Iraqi forces recaptured the city of Fallujah, before recapturing the remaining pocket of ISIL resistance in Fallujah's western outskirts two days later.
The Battle of Mosul was a major battle initiated by the Iraqi Government forces with allied militias, the Kurdistan Regional Government, and international forces to retake the city of Mosul from the Islamic State (ISIL), which had seized the city years prior in June 2014. It was the largest conventional land battle since the capture of Baghdad in 2003, it was also the world's single largest military operation overall since the 2003 invasion of Iraq and was considered the toughest urban battle since World War II. The operation, which was called Operation "We Are Coming, Nineveh", began on 16 October 2016, with forces besieging ISIL-controlled areas in the Nineveh Governorate surrounding Mosul, and continued with Iraqi troops and Peshmerga fighters engaging ISIL on three fronts outside Mosul, going from village to village in the surrounding area in the largest deployment of Iraqi troops since the 2003 invasion of Iraq.
The Battle of Kirkuk took place in the city of Kirkuk in northern Iraq between Iraqi Kurdistan and allies and the Islamic State of Iraq and the Levant. The battle occurred less than a week after the beginning of the Battle of Mosul launched by Iraqi security forces and allies.
The following is a timeline of the Battle of Mosul (2016–17) between October and December 2016.
During the Battle of Mosul (2016–2017), numerous reports of human rights abuses surfaced against the various parties involved in the conflict. Up to 1.5 million civilians lived in the city, sparking concerns among various organizations of a large humanitarian crisis. Lise Grande, the United Nations' humanitarian coordinator in Iraq, stated, "In a worst-case scenario, we're literally looking at the single largest humanitarian operation in the world in 2016." Save the Children warned that massive civilian bloodshed was likely, unless safe routes were authorized to let civilians flee. The U.S. government has accused ISIL of using civilians as human shields.
